545545545 has 16 divisors (see below), whose sum is σ = 880883520. Its totient is φ = 288287424.

The previous prime is 545545543. The next prime is 545545597.

545545545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545545545 - 2¹ = 545545543 is a prime.

545545545 is a modest number, since divided by 545545 gives 545 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 545545497 and 545545506.

It is not an unprimeable number, because it can be changed into a prime (545545543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165199 + ... + 168468.

It is an arithmetic number, because the mean of its divisors is an integer number (55055220).

Almost surely, 2^545545545 is an apocalyptic number.

It is an amenable number.

545545545 is a deficient number, since it is larger than the sum of its proper divisors (335337975).

545545545 is a wasteful number, since it uses less digits than its factorization.

545545545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333784.

The product of its digits is 1000000, while the sum is 42.

The square root of 545545545 is about 23356.9164274739. The cubic root of 545545545 is about 817.1033753896.

The spelling of 545545545 in words is "five hundred forty-five million, five hundred forty-five thousand, five hundred forty-five".